Home / 4,920.38-7,377.39-2,419.82

Finding the Fourth Proportional to 4,920.38, 7,377.39 and 2,419.82

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Solution

The fourth proportional to 4,920.38, 7,377.39 and 2,419.82 is: 3,628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.38 : 7,377.39 = 2,419.82 : x
  2. Step 2: Convert to fraction form
    4,920.38/7,377.39 = 2,419.82/x
  3. Step 3: Cross multiply
    4,920.38x = 7,377.39 × 2,419.82
  4. Step 4: Simplify right side
    4,920.38x = 17,851,955.87
  5. Step 5: Solve for x
    x = 17,851,955.87/4,920.38
  6. Step 6: Final answer
    x = 3,628.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.